Remove the parentheses of -(750+.25x) by changing the signs of both terms inside the parenthese, getting -750-.25x: Combine the terms .75x and -.25x as .50x Get rid of the -750 by adding +750 to both sides Combine 500+750 and get 1250 on the left, and cancel -750 and +750 on the right. Divide both sides by .50 divide on the left, cancel .50's on the right Solution: 2500 Edwin